Kärcher CS 330 Bp, Original Operating Instructions

Page: 34 / 540

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 Measure the groove depth of the guide
bar.
 With less than 4 mm, replace the guide
bar.
Dull or damaged saw chains lead to poor
cutting power and increase the wear of
drive and guide bar.
Resharpen the saw chain at regular inter-
vals.
If sharpening is no longer possible, replace
the saw chain.
1 Top plate
2 Cutting edge
3 Depth limiter
4 Rotation direction
NOTICE
Use a special saw chain file (4.5 mm) for
sharpening. Traditional round files are not
suitable.
 Position the file at the level of the top
plate.
 Pull the file along the cutting edge. An-
gle: 30 degree.
NOTICE
Only work at a 30 degree angle. At an angle
of more than 30 degree, the chain becomes
too sharp and wears faster. At an angle of
less than 30 degree the chain remains dull.
1 Flat file
2 Filing gauge
 Place the filing gauge onto the sawtooth.
 Refile the depth limiter with a flat file.
NOTICE
Filing gauges and saw chain files are avail-
able in specialist shops.
Check guide bar for wear.
Sharpening the saw chain
34 EN